Where is the lead exposure risk in your community?

In some of America's oldest and largest urban areas, places like New York and Chicago, one in five census tracts — geographic areas that usually have between 1,200 and 8,000 people — have very high risks of lead exposure.

In younger metro areas, like Los Angeles, risks are smaller but still present; 12 percent of census tracts there have risk scores of 10. And it's important to remember that public health experts say no level of lead exposure is safe for children.

Via vox.com